Can you check for me what went wrong with my formula?

Ok i will try. Will update you. Thanks for your help

And van i copy the formula and paste to the signature url in my app

Ok will try later. But what is the exact formula should i use and where the formula should i put in the appsheet. Since i want the signature to be automated shown in the spreadsheet. I want to use the formula straight from my app if possible, i don’t...